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The BenDoser v1.0
So easy even a caveman could do it..
Do it your self simple Doser, this device will measure out a pre-determined amount of solution (min ~5ml/max ~70ml) and then dispence it into your nutrient tank at programmed intervals. Its very cheap, can be built for ~$60 or less and is gravity operated.. no pumps needed!
This is just the doser, it can be hooked up to a controller such as the Milwalkee SMS-122 for ~$110 or a simple timer if your brave and/or cheap ($15-25)..
It wont overdose as long as you set it up properly, the dosage amount is set by raising or lowering the float valve in the measuring syringe.. Once the float is set to your desired position it will dispence the same dose every time it is triggered.
Here is a video of it in action:
[youtube]Z5TnKD0A5S4[/youtube]
Here is the basics..
Minimum of what you'll need:
How it works:
attached is the wiring diagram, if your electrically inclined this should be simple.
Coming soon is Step by Step Instructions!
-Ben
So easy even a caveman could do it..
Do it your self simple Doser, this device will measure out a pre-determined amount of solution (min ~5ml/max ~70ml) and then dispence it into your nutrient tank at programmed intervals. Its very cheap, can be built for ~$60 or less and is gravity operated.. no pumps needed!
This is just the doser, it can be hooked up to a controller such as the Milwalkee SMS-122 for ~$110 or a simple timer if your brave and/or cheap ($15-25)..
It wont overdose as long as you set it up properly, the dosage amount is set by raising or lowering the float valve in the measuring syringe.. Once the float is set to your desired position it will dispence the same dose every time it is triggered.
Here is a video of it in action:
[youtube]Z5TnKD0A5S4[/youtube]
Here is the basics..
Minimum of what you'll need:
- Container Full of Solution (ie, pH Down) with a drain at bottom.
- Measuring Syringe
- 12v Float Switch
- Two NC 12v Solenoid Valves, I used EHCOTECH BBTF-CD-12VDC
- 1/4" Tubing
- 12v SPDT Relay
How it works:
- 12v Power supply is plugged in, top valve opens.
- Gravity Drains solution into Syringe
- Fluid reaches float & triggers/locks relay
- Top valve closes, Bottom Valve Opens
- Solution is drained into the tank
attached is the wiring diagram, if your electrically inclined this should be simple.
Coming soon is Step by Step Instructions!
-Ben